Electrolytic process of producing metals.



- metallic carbid, particularly a T 0 all whom it may concern:

.Britain;residingjat Niagara Fa ls, in the 'covery of any of the alkali or alkaline-earth a haloid salt.

UNITED STATES PATENT OFFICE.

EDGAR F. PRICE AND WILLIAM SMITH HORRY, BY MESNEASSIGNVENTS, TO CENTRAL T CORPORATION OF NEW YORK. i

ELECTROLYTIC PROCESS -OF NIAGARA FALLS, NEW YORK, ASSIGNORS, UST COMPANY OF NEW YORK, TRUSTEE, A

0E PRODUCING METALS.

, Specification of Letters Patent.

Application filed December 29, 1906. Serial No. 360,081.

Be it known that we, EDGAR F. PRICE, citizen 'of the United States, and \VILLIAM SMITH HoRRY, a subject of Kin of Great county of Niagara and'State of New York,

have invented certain new and useful Irn-- provernents in Electrolytic Processes of Producing Metals, of which the following is a specification.

This process relates to the electrolytic re- A molten bath of calcium chlorid or fluorid, preferably with additions of the correspo mg salts of strontium andammonium to lower the melting point, is el'ectrolyzed with a composite anode of calcium carbid and a binder, any suitable cathode, for example one of. iron, being employed to receive the electro-deposited,calci rmi 'lhegnode gradi 'uallydissolves,the contained calcium recombining with thehalogenion to replenish the bath, while the carbon may float to-the surface and be burned by the atmospheric oxygen." It'is preferred, however; tOXdisf solve cj'aljcium oxid in the electrolyte, in 7 'WlllCl'l case the oxygen ion is liberated at andcombines withthe carbon of the anode,-cor respondingly decreasin the consumption of electric energy, while t. e calcium ion of the oxid isdeposited at the cathode-simultanee ously with that from the haloid salt.

,We claim: I 1

1. The process of producing alkali or-a'lka- Patented. May 5, 1908 line-earth metals, which consists in electrolyzing a molten salt of the desired metal with an anode essentially comprising a'carbid of that metal. 5 i :2. The process of producing calcium, which consists in electroly'zing a molten tially comprising calcium carbizl.

The process of producing calcium,

compound of calcium with an anode essenwhich consists in electroiyzing. a molten haloid salt of calcium with an anode essentially comprising calcium carbid'.

4. The process of roducing alkali or alkaline-earth-metals, Wlll'Cll consists in electrolyzing a molten bath with an anode eonsisting essentially of a metallic carbid, said bath comprising a salt and an oxid'of the desired metal.-

5. The process of which consists in electro yzing a molten bath com rising asalt and oxid of calciumwith an grip e consisting essentially of calcium car- In testimony whereof, weal-fix our signatures in presence of two witnesses. EDGAR F. PRICE.

' FREDK; H. BEoKET, Epw.-J. SCHNEIDER.

foducing calcium,

4 WILLIAM SMITH HURRY; Witnesses: Y 

